#!/usr/bin/python3

from pprint import pprint

with open('/proc/meminfo', 'r') as f:
    lines = f.read().splitlines()

mem = {x.split(':',1)[0] : int( x.split(':',1)[1].replace('kB', '').lstrip().rstrip() ) for x in lines}

#pprint(mem)


mem['MemUsed'] = mem['MemTotal'] - mem['MemFree'] - mem ['Cached'] - mem['SReclaimable'] - mem['Buffers']
mem['SwapUsed'] = mem['SwapTotal'] - mem['SwapFree']

mem['OverallUsed'] = mem['MemUsed'] + mem['SwapUsed']


pprint(mem)


print('MemTotal:    %8.2f MB' % (mem['MemTotal']/1024) )
print('OverallUsed: %8.2f MB' % (mem['OverallUsed']/1024) )
print('Ratio:       %8.2f %%' % (mem['OverallUsed']/mem['MemTotal']*100.0) )
print('MemUsed:     %8.2f MB' % (mem['MemUsed']/1024) )
print('SwapUsed:    %8.2f MB' % (mem['SwapUsed']/1024) )